RE Audio’s SEX Line of subwoofers redefines high performance and value. These subwoofers are placed in the middle of RE Audio’s full line-up, and can handle high power output around 600 watts RMS! These SEX Subwoofers are the perfect addition to any trunk!

These impressive subwoofers are built into a cast aluminum basket, and their triple stacked magnet drivers work off of a 3” 4-layer aluminum voice coil. This allows for quick bass response, and clearly outputs for deep bass in the lower frequency range. With an FEA optimized motor structure, the SEX subwoofer lineup maintains tight bass response and allows the subwoofer full control over all types of music.

Each one of these RE Audio SEX Subwoofer can handle 600 watts RMS of continuous power, no matter the size! These competitively priced subwoofers are an excellent complement to any audio system, and will provide you with that clean, hard hitting bass you’re looking for.

Product History:

Subwoofer Specifications

Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.

SEX (RE Audio)

Subwoofer Size

Refers to the diameter of the subwoofer, measured in inches.

15"

RMS Power Handling

The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.

600 watts

Voice Coil(s)

Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.

Dual

Impedance (Per Voice Coil)

The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.

2 ohms

Voice Coil Diameter

Diameter of voice coil, usually measured in inches.

3"

Sensitivity

An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".

88 dB

Xmax (millimeters)

Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.

18 mm

Subwoofer Design

This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle

Main Cone Color

This is the color of the speaker's or subwoofer's cone.

Black

Woofer Composition

Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.

Dual Composite 2-Piece Cone

Woofer Surround

A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.

Rubatek Foam

Magnet Structure

Defines the overall structure of the subwoofers magnet.

Triple Stacked

Subwoofer Grille

Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.

No

Re-Cone Kit Available

Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

No

Recommended Enclosure Specifications

Recommended Enclosure Type

This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / VentedSealed

Minimum Sealed Box Volume

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

1.5 cubic feet

Optimum Sealed Box Volume

This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Maximum Sealed Box Volume

This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

2.0 cubic feet

Minimum Ported Box Volume

This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

3.0 cubic feet

Optimum Ported Box Volume

This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Maximum Ported Box Volume

This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

4.0 cubic feet

Top-Mount Depth

The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.

8-1/2"

Cutout Diameter

The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.

14"

Shallow Mount Installation

This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

No

Electromechanical Parameters

Free-Air Resonance (Fs)

The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.

22 Hz

Equivalent Compliance (Vas)

This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.

209 liters

Total Speaker Q Value (Qts)

This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses.
Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.

0.49

Electrical Q Value (Qes)

The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.

0.55

Electrical Resistance of Voice Coil (Re)

Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.

2.8 ohms

Mechanical Q Value (Qms)

This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.

4.3

Efficiency Bandwidth Product (EBP)

This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

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More reviews

I am running two of these in a nine cubic foot ported box tuned to 34hz with an old school Rockford bd1000 in my 2003 Tahoe. Absolutely slams! very clean sub and actually tight for rock and country but insane on rap. Ive been into car audio since 1993 and even worked at local shops. Trust me you will love these subs

11 of 16 found this helpful

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I bought three of these subs and I'm pretty happy with my purchase. I had to replace two of them because of factory defects but it was easy since SonicElectronix has good customer service. I have all three on a 2100W Hifonics and they beat. Overall they are a good sub.

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I have this sub in a 1.7 cubic ft sealed box in my 2012 jeep wrangler with hard top hooked to a hifonics 1500 watt amp. It absolutely slams, my bass is set at -9 on my radio and with the amp wide open it absolutely slams, I've only done it once so far but i put the bass at +4 and it goes up to 9 and i was shaking quarters off my hood and it felt like i was being smacked in the back of the head. Highly recommended!!!!

9 of 15 found this helpful

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This subwoofer is amazing I had it for a month now and boy this thing slams. I have only one and it flexes my windshield on my 93 riviera
I have it in a 4 cubic foot box with 2 4in circle ports it's all 1in think mdf wood soon I'm going to buy 2 more to my system thank u sonic

8 of 14 found this helpful

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I have one of 15" SEx in a sealed 2 cubic ft. box. I have it in a tiny 93 toyota tacoma im only running it on a Sony amp only pushing 340rms and this thing kills I have a 600 RMS sound stream amp in the mail I can't wait to hook it up its going to be gnarly. RE definitely builds the best subs out there I'll never go with another company.

8 of 14 found this helpful

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Put in proper box with proper tune ,which 35hz, sounds great. Put two of these with 750rms to each and they will bang hard. i have 1 15 re sex with prime 750rms monoblock and it hits hard. It is an awesome well made subwoofer.

9 of 17 found this helpful

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So I am a major audiophile. When installing my whole system i decided to go with RE since the price isn't bad and I've hear a lot of good things. I built a 4 cubic foot box for it and I was blown away by how clean the bass is. I listen mainly to blues, jazz, soft rock, ska, etc. So a lot of the music has a prominent bass line and this sub does an impressive job putting out that deep tone. On a side note this sub can thump. Mine is run on 600w and wow. Listening to bass heavy stuff like rap or dubstep is deafening and affects your breathing. Its kinda awesome.

6 of 11 found this helpful

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Pros: this sub slams and handles every type of music ive thrown at it without sounding distorted or "sloppy" hits the low notes dead on and even higher bass notes sound good too possibly the best spl and sq for your money
Cons: i need to upgrade my alternator lol
other thoughts if youre going ported this sub needs a rather big box so check your cars trunk first i had to remove my spare tire just to wedge it in lol

9 of 17 found this helpful

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This sub slams! It's way underrated; I have it hooked up to a Hifonics HFi1000D Amplifier and it takes the 1000 RMS with room to go! I'm thinking about getting a bigger box (around 4.0 cubic feet instead of my current 3.1) which i would definitely recommend. Don't even think about going sealed, especially if your looking for big bass.

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I hooked them up to 600rms each and wow even before they broke in they were quite clear and hit the lows amazing compared to my previous type r 15s. However after 3 months of use one of the dual voice coils melted. Didn't feel like going through the whole 3 week return process purchased an exact replacement and have been running both subs very hard for 6 months now with no problems. Guess I just got a bad egg.

5 of 10 found this helpful

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i bought 2 of these a few months ago and put them in a 7.3 cuft box tuned to 32Hz . they are runnging off of a hfi1500D getting 1500wrms with the 0 gauge. they slam so hard! you can hear me coming from a mile away and they can even set off car alarms. have them in a 99 Ford Expedition

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I have 2 15" running off an MTX 1000xd and let me tell you these thing hit hard. I had 2 15' L5 kickers before and the RE subs are better hands down. I also have 3 10' RE SRI subs that I am going to run off
a Soundstream stl 1.1200 mono amp. Don't be cheap buy the subs u won't regret it.

6 of 12 found this helpful

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Coming from one single RE- audio S*X 12 I was already expecting some improvement. I was totally wrong and not expecting such a HUGE difference. The power and Clarity these have are really something to talk about. I thought my truck was going to fall apart when these suckers got some real juice flowing. I currently have a RE-1500.1 Amp rolling out about 900-1000 watts rms through 2 of these speakers. In a Huge box.. Could not be happier :) I have about a 4 inch port for these 2 speakers and Lows could take the breath away if i let them! i need more power because the power handling for these speakers are 600watts at 2 ohms. i do have them wired down to 1 so probably 750* estimation * is what these can take! so i have to look forward to a stronger amp~

4 of 9 found this helpful

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I have 1 of these bad boys with a hifonics hfi1500.1d amp running zero gauge and this thing slams. it has handled everything i have thrown at it with room to spare. it makes my roof and windshield flex! i am 100% satisfied with this subwoofer. i will always buy RE products from now on.

6 of 13 found this helpful

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Running 1 D2 @ 1ohm x 800WRMS off a MAHK1000D.
3.18 4th order box(with PD) making it 3.01 after sub and tuned at 35hrtz. Very clean sound, responds to a wide range of hrtz.
Woofer material is clear cut built for heat removing from the VC and Spider motor structure area. Over all, it's a firm built woofer, VC plug's are very strong and match the AWG for a 600WRMS VC.

con's - I would not class this just a SPL woofer or just a SQ. With it's xmas it wont appeal to certain audiophiles who like the sight of excursion for example. No re-cone kit found (to my knowledge), Outer rubber screw basket can push into the foam when bolted to firmly.

Over all - I would suggest this model/brand/company to customer, friends, and family. Prices compared to most may seem high, but the value makes it worth it in the main stream brand they are (not comparing to retail junk (IE what's bought in Best Buy/WalMart/etc but comparing to REAL companies)).

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I bought this sub recently! at first i had it on a hifonics 1000/1 Dclass the jumped it to the planet audio 4000/1 D class. oh ya the box i have is a 4 cu ft box and buddy does it hit hard. i was showing it off were i work (a ford dealership in houston texas) and one guy was saying he could see my dash and my flip out screen moving like crazy so I replayed the song and boy it was crazy.

After reading solid reviews, and never hearing it in person,i went ahead and purchased it, hoping it would fulfill my bass needs. All my friends run kicker, fosgate, alpine and more common brand speakers and amps, and since i always go for the lesser known but higher quality brands, Excellent, clean, deep bass. Exactly what i had been looking for! Highly recommended for anyone looking for a 15" sub woofer!

Product Summary

Why shop Sonic?

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Customer Testimonial

“

I hooked the Hifonics BRX1200.1D up to my old 12's and it's pounding the guts out of them. I give Sonicelectronix.com and the products I've ordered 5 star's across the board. I will continue to buy my electronics from Sonicelectronix.com. Thank you Sonicelectronix.com____

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: RE Audio SEX15D2

RE Audio Overview | CES 2015

Subwoofer Size Buying Guide

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